742107820542 has 32 divisors (see below), whose sum is σ = 1619652841344. Its totient is φ = 224810532000.

The previous prime is 742107820537. The next prime is 742107820549. The reversal of 742107820542 is 245028701247.

It is a junction number, because it is equal to n+sod(n) for n = 742107820494 and 742107820503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742107820549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553709 + ... + 1974392.

It is an arithmetic number, because the mean of its divisors is an integer number (50614151292).

Almost surely, 2^742107820542 is an apocalyptic number.

742107820542 is an abundant number, since it is smaller than the sum of its proper divisors (877545020802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

742107820542 is a wasteful number, since it uses less digits than its factorization.

742107820542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531304.

The product of its (nonzero) digits is 250880, while the sum is 42.

The spelling of 742107820542 in words is "seven hundred forty-two billion, one hundred seven million, eight hundred twenty thousand, five hundred forty-two".